In a crisis control center, several teams of firefighters in Montelibretti, Italy, used laptops to guide a robotic ground vehicle into a smoke-filled highway tunnel. Inside, overturned motorcycles, errant cars, and spilled pallets impeded the robot’s progress. The rover, equipped with a video camera and autonomous navigation software, was capable of crawling through the wreckage unguided while humans monitored the video footage for accident victims. But most of the time the firefighters took manual control once the robot was a few meters into the tunnel. Continue reading Robot to Human: ‘Trust Me’
Category Archives: News
Predictable evolution trumps randomness of mutations
Although mutations, the driver of evolution, occur at random, a study of the bacterium Escherichia coli reveals that nature often finds the same solution to the same problem again and again. Continue reading Predictable evolution trumps randomness of mutations
Bit loans
WANT to get some cash at automated teller machines in Nairobi? Don’t be surprised by the guards with machine guns. ATMs attract plenty of muggers and pickpockets.
Unsurprisingly, cashless transactions have been catching on fast in Nairobi and elsewhere in Africa. Microfinance organisations were among the pioneers. In Kenya, for instance, they started using M-PESA, the popular mobile money service, to hand out loans to small-time businesspeople in 2008, soon after its launch.
Musoni, a Kenyan microfinance firm with more than 10,000 customers and over $6.3m in loans since its launch in May 2010, is now taking the idea even further: in an effort to bypass banks and make microfinance more efficient, it has gone completely cashless—a worldwide first, claims Cameron Goldie-Scot, the firm’s chief operating officer.
Plugging In to Plant Roots
Cast-off electrons in a plant’s roots can provide electricity, a Dutch team reports. Now, through a spin-off company, it hopes to grow grassy generators on rooftops and promote decentralized electrical production in wetlands in developing countries.
Plants exude a variety of waste products that microbes consume, such as glucose, acetate, butyrate, and propionate. The underground interaction leaves spare electrons in the surrounding soil and water, which researchers—led by Bert Hamelers at Wageningen University, in the Netherlands—began tapping in experiments in 2007. They were already working on using so-called microbial fuel cells (MFCs) to treat wastewater when they realized that plant roots improved the performance of the fuel cells. Continue reading Plugging In to Plant Roots